1D Compression Explorer

Stress History

Initial vertical stress σ′₀ (kPa):

50 kPa

Initial preconsolidation stress σ′_pc (kPa):

150 kPa

Peak loading stress σ′_max (kPa):

300 kPa

Stress after unloading σ′_f (kPa):

100 kPa

Virgin compression slope λ:

0.18 -

Swelling / recompression slope κ:

0.040 -

Void ratio at initial σ′_pc:

1.00 e

Initial OCR 3.00

Current OCR 3.00

Initial void ratio 1.04

Peak void ratio 0.88

Final void ratio 0.92

Peak stress exceeds the initial σ′pc, so the soil yields and the new σ′pc becomes the past maximum stress.